Answer: 9,000
Step-by-step explanation: there are 9 number options for the first digit and 10 for the other 3, so 9x10x10x10=9000
Answer:
$4.81
Step-by-step explanation:
Answer:
<h2>
a₅ = 162</h2>
Step-by-step explanation:
The nth term in the geometric sequence: 
a₁ = 2 and r = 3
So:

Answer:

Step-by-step explanation:
n is doubled: 2n
y added: 2n + y
divided by 2: n + 
n subtracted -> final resutl: 